Recovery as nitrogen declines

Nitrogen recovery and reuse

Plant quality declines as CO2 levels rise

There is concern that crop plants are becoming less nutritious as the levels of carbon dioxide in the atmosphere increase.

Nitrogen-doped magnetic carbon nanoparticles as catalyst supports for efficient recovery and recycling.

Palladium nanoparticles were deposited with high dispersion and stability on nitrogen-doped magnetic carbon nanoparticles by a simple impregnation method, and their catalytic performance was investigated for Heck, Suzuki, and Sonogashira coupling reactions.

Recovery of nitrogen and phosphorous as struvite from swine waste biogas digester effluent.

OBJECTIVE To investigate the feasibility of nitrogen and phosphorus recovery from swine waste biogas digester effluent and the effects of pH and NH4+: Mg2+: PO4(3-) molar ratio on its precipitation. METHODS Precipitation experiments with swine waste biogas digester effluent were conducted at pH 7.5, 8.0, 8.5, and 9.0 together with NH4+: Mg2+: PO4(3-) molar ratios 1: 0.2: 0.08, 1: 1: 1, and 1:...

The canary in the coalmine ; bee declines as an indicator

8 Bee declines have received much attention of late, but there is considerable debate and 9 confusion as to the extent, significance and causes of declines. In part this reflects conflation 10 of data for domestic honeybees, numbers of which are largely driven by economic factors, 11 with those for wild bees, many of which have undergone marked range contractions but for 12 the majority of whic...